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Commits on Mar 2, 2026

• #65 Fix a potential integer overflow issue in the 64-bit usage tracker demo application (Thanks to Gabriel Moraru.)

  

  Pierre le Riche

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Commits on Feb 27, 2026

• Improve the handling of unexpected errors in Windows API calls, mostly in the memory manager sharing mechanism. (Thanks to Ian Branch for bringing these to my attention.)

  

  Pierre le Riche

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• Add an important note in the "Statically Linked DLL" demo documentation regarding debug mode and sharing of the memory manager between an application and statically linked libraries: The debug mode…

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  Pierre le Riche

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Commits on Aug 22, 2025

• Add an OS_GetCurrentProcessID wrapper instead of calling the Windows API directly - for future support of other operating systems.

  

  Pierre le Riche

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Commits on Aug 14, 2025

• #59 If a corruption was detected in a block then the logging code would always include the first 4 (8 under 64-bit) bytes in the list of detected corruptions.

  

  Pierre le Riche

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Commits on Jul 19, 2025

• #58 Invalidate the stack trace memory map whenever a DLL is loaded or unloaded. This will reduce the number of (handled) exceptions when performing stack traces.

  

  Pierre le Riche

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Commits on Mar 18, 2025

• Add a demo application to show how to log memory errors and leaks to a text file without showing any dialogs. This configuration is useful for debugging issues that only occur in production, while …

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  Pierre le Riche

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Commits on Dec 29, 2024

• Update documentation

  

  Pierre le Riche

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• Update documentation for release 5.06

  

  Pierre le Riche

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Commits on Nov 22, 2024

• #55 Add FastMM_DebugBreakAllocationNumber: Allows triggering of a break point in the debugger if the block with the specified allocation number is allocated.

  

  Pierre le Riche

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Commits on Nov 14, 2024

• Fix the failure to correctly report class names in leak reports, etc. when the class name pointer is not aligned to SizeOf(Pointer).

  

  Pierre le Riche

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Commits on Aug 28, 2024

• Add a sanity check on the class name pointer in FastMM_DetectClassInstance as an additional safety net in order to prevent blocks from being misidentified as class instances in leak and state reports

  

  Pierre le Riche

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Commits on Aug 26, 2024

• #54 Add FastMM_BeginEraseAllocatedBlockContent and FastMM_EndEraseAllocatedBlockContent. When enabled this will fill newly allocated blocks with the debug pattern, helping to catch bugs involving t…

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Commits on Aug 23, 2024

• Add support for the UseDelphi5VMTOffsets define allows compilation of a borlndmm.dll library that will correctly log leaked class names when used with applications compiled with very old versions o…

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  Pierre le Riche

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Commits on Aug 22, 2024

• #54 Use the $90909090 debug fill pattern for allocated debug blocks in order to differentiate between errors involving uninitialized allocated memory and errors involving freed memory. Previously a…

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  Pierre le Riche

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• Add support for changing the virtual method table offsets used to correctly identify objects in e.g. leak reports. This is useful when compiling a borlndmm.dll that will be used with an application…

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  Pierre le Riche

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Commits on May 2, 2024

• #50 Fix to large block thread contention handling: Previously large block thread contentions were not logged, and the thread would also not yield to other threads as intended.

  

  Pierre le Riche

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Commits on Apr 27, 2024

• Rebuild the FastMM_FullDebugMode libraries with Delphi 11.3 and the latest JCL

  

  Pierre le Riche

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Commits on Apr 2, 2024

• Port the usage tracker demo to FastMM5

  

  Pierre le Riche

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• Add FastMM_GetMemoryManagerState and FastMM_GetMemoryMap calls for backward compatibility with FastMM4

  

  Pierre le Riche

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Commits on Mar 2, 2024

• Include milliseconds block logging timestamps

  

  Pierre le Riche

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Commits on Feb 28, 2024

• Change allocation timestamps in crash logs to absolute times

  

  Pierre le Riche

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• Include the relative allocation time when logging memory block details.

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  Pierre le Riche

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Commits on Feb 1, 2024

• Add support to FastMM_LogStateToFile for logging a differential state between two allocation group ranges.

  

  Pierre le Riche

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• Change the parameters of FastMM_LogStateToFile from string to PWideChar to allow the calling code to avoid allocating strings (which may add clutter to the report). Reorder the parameters so that t…

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  Pierre le Riche

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Commits on Jan 31, 2024

• Add the current timestamp to the FastMM_LogStateToFile output, and add an option not to truncate the file.

  

  Pierre le Riche

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• Add an option to sort the output of FastMM_LogStateToFile either in descending total memory usage (the default) or alphabetically.

  

  Pierre le Riche

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Commits on Jan 26, 2024

• Fix several warnings with the options enabled to warn of potential data loss with implicit integer type conversions. These warnings were all false alarms, but now that the type conversions have bee…

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  Pierre le Riche

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Commits on Nov 6, 2023

• Handle a potential race condition in FastMM_DetectClassInstance: If another thread frees a block while it is being evaluated as a potential class then an A/V could occur. This indirectly affects ot…

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  Pierre le Riche

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Commits on Sep 27, 2023

• Add a debug mode demo showing how to configure FastMM to detect and report memory corruption errors

  

  Pierre le Riche

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Commits on Sep 26, 2023

• Minor documentation updates

  

  Pierre le Riche

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Commits on Aug 28, 2023

• Under 64-bit memory blocks are always at least 16 byte aligned, and under 32-bit they are always at least 8 byte aligned. Add a check in the debug FreeMem and ReallocMem routines to catch potential…

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  Pierre le Riche

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Commits on Aug 4, 2023

• Add an allocation group filter to FastMM_WalkBlocks and FastMM_LogStateToFile

  

  Pierre le Riche

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Commits on Jul 28, 2023

• Merge pull request #37 from martijnlaan/master

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  pleriche

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• Add FastMM_RequireIDEPresenceForLeakReporting like FastMM4 had to enable leak reporting in libraries.

  

  Martijn Laan

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